Notable Friday Option Activity: BLK, CZR, ETSY
September 17, 2021 at 13:25 PM EDT
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Blackrock Inc (BLK), where a total volume of 5,371 contracts has been traded thus far today, a contract volume which is representative of approximately 537,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 132.2% of BLK's average daily trading volume over the past month, of 406,240 shares..